CN102410375A - Waterborne sealing device for amphibious vehicle - Google Patents
Waterborne sealing device for amphibious vehicle Download PDFInfo
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- CN102410375A CN102410375A CN2011102420456A CN201110242045A CN102410375A CN 102410375 A CN102410375 A CN 102410375A CN 2011102420456 A CN2011102420456 A CN 2011102420456A CN 201110242045 A CN201110242045 A CN 201110242045A CN 102410375 A CN102410375 A CN 102410375A
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Abstract
The invention provides a waterborne sealing device for an amphibious vehicle, and the waterborne sealing device is used for solving the waterborne sealing problem of the vehicle and can realize waterborne sealing of an axle and a wheel-side reducer as well as other rotating parts by means of the original parts and devices in the vehicle on the basis of structure improvement of the existing vehicle. The sealing device is composed of an air compressor, a pressure reducing valve, a switch valve, a one-way valve, a three-way one-way valve, a respirator, a connecting pipeline and the like, wherein the air compressor is connected to the output end of an engine, and the generated high pressure air is depressurized through the reducing valve and then enters the axle or a box of the wheel-side reducer through the switch valve, the one-way valve and the three-way one-way valve so as to form high pressure and further realize sealing under the waterborne running state of the vehicle. The waterborne sealing device provided by the invention has the advantages that the structure is simple, and the space is saved, thus being favorable for arrangement; and meanwhile the device is convenient to control, the reliability is strong, and the universality is good, thus the device can be popularized and applied to various amphibious vehicles.
Description
Technical field
The invention belongs to the wiper seal field of motor vehicles and machines, specifically relate to a kind of amphibious vehicle seal arrangement waterborne.
Background technique
Land and water vehicle need seal its transmission part when carrying out waterborne going, and gets in the casing of transmission part to prevent water.Enter into the casing of transmission part when water after, lubricant oil will be rotten very soon, lose lubrication effect, reduce transmission efficiency, and then damage transmission part.The sealing waterborne of land and water vehicle transmission part is an important actual engineering problem, and the functional reliability of vehicle is had significant effects.
For land and water vehicle, the sealing of vehicle bridge and wheel reductor need be considered land travelling state sealing and travelling state waterborne simultaneously.In land the going of vehicle, owing to the gear engagement and the friction of vehicle bridge and wheel reductor are generated heat, produce high temperature and high pressure in the casing body, the main purpose of land sealing is that the lubricant oil of sealing in the casing is non-leakage.Consistent for guaranteeing with work febrile state lower box external and internal pressure in the cold conditions of vehicle bridge and wheel reductor, on casing, have vent usually, and resuscitation apparatus is installed.In waterborne the going of vehicle, need seal lubricant oil simultaneously and from casing, not come out not get in the casing with water.
According to engineering experience in the past, the sealing waterborne that solves vehicle bridge and wheel reductor need take very big interior space; Under the situation compact at vehicle structure, that the space is nervous, waterborne being sealed to that solves amphibious vehicle is a difficult problem.
Common air-breather has pore, Non-return air valve, valve switch etc. in the modern industry production; In the machinery gas pipeline; These air-breathers are used under the atmosphere working environment mostly; Though degassing function is fine, reverse waterproofing effect is very poor, makes their using scope receive great restriction.For the land and water vehicle vehicle drive axle under the driving conditions and the seal request of wheel reductor on the water, this type of installs no longer valid.
About amphibious vehicle waterborne seal arrangement waterborne; Application number is the utility model patent of CN94220280.5, denomination of invention " amphicar sealed device for drive-shaft "; Disclosed technological scheme is: seal arrangement is made up of sealing flange, bellows and the pipe that is rigidly connected etc.; Sealing flange is fixed on the propons or back axle of automobile, and preceding bellows is connected with the pipe that is rigidly connected with sealing flange respectively, and back bellows is connected with the sealing car body with the pipe that is rigidly connected respectively; Because the drive part of automobile is sealed; Original transmission effect of vehicle and rideability had both been guaranteed; Prevent effectively that again vehicle is in water or the lubricant oil in the land locomotion transmission part is washed away or leak the usability and the life-span that help improving automobile.
Application number is the patent of CN95228827.3, denomination of invention " amphibious automobile transmission shaft waterproof seal "; Disclosed technological scheme is: the fixing rigid plane sealing plate at automobile transfer case housing front wheel driving output shaft aixs cylinder position, weld a cylindrical drum in hand braking installation base plate outer; Be connected with the overhanging cylinder of rear propeller shaft with overhanging cylinder of bowl seal connecting cylinder and front propeller shaft and cylindrical drum respectively with flexible sebific duct; Seal arrangement does not have any friction and causes contacting of fatigue fracture with the moving element at vehicular transmission shaft position.
In addition, application number is that C N200810047012.4, denomination of invention are the application for a patent for invention of " venting and waterproof device and preparation method thereof ", disclosed venting and waterproof device; The diaphragm seat is stuck in the vent plug body circular groove; The hole back-up ring is stuck in the vent plug body inside groove, and the vent plug axon is to having step-like vent and circular groove, and its annular space and vent form the exhaust passage; The elastomer diaphragm opening is outwards packed in the diaphragm seat; The round ring boss of the round ring boss of vent plug body and diaphragm seat forms extruding to elastomer diaphragm, and elastomer diaphragm is the horseshoe clamp bottom structure, on the vent plug body sealing cover is housed; Can equipment internal box mesohigh hot gas be discharged a part to reduce the casing internal air pressure; Increase the service life, and can stop water to get into running device automatically, particularly can prevent the Rzeppa type synchronous universal transmission shaft water inlet that land and water vehicle uses; Reduce component corrosion rate; Protection universal joint internal lubrication environment reduces the transmission resistance, satisfies the job requirement of equipment under particular surroundings.
The change to original vehicle that above-mentioned patent has is bigger, have to take interior space bigger, and seal arrangement is not mentioned the sealing to wheel reductor.
Summary of the invention
The object of the invention is to provide the vehicle bridge and the wheel reductor seal arrangement of land and water vehicle, is used to solve the sealing problem waterborne of vehicle.Can be through existing vehicle structure is transformed under the minimum situation, by original parts and device on the car, ventilation forms positive pressure in vehicle bridge and wheel reductor, realizes the sealing waterborne of rotary components such as vehicle bridge and wheel reductor.Seal arrangement is made up of air compressor, reduction valve, switch valve, one-way valve, threeway one-way valve, resuscitation apparatus and connecting pipeline etc.; Air compressor is connected the motor output terminal; High-pressure air is after the reduction valve decompression; Enter into the casing of vehicle bridge or wheel reductor through switch valve, one-way valve and threeway one-way valve, set up certain high pressure, realize the sealing of vehicle travelling state waterborne.
For realizing the foregoing invention purpose, the technological scheme that the present invention takes is:
A kind of amphibious vehicle seal arrangement waterborne, its improvements are that seal arrangement comprises air compressor, reduction valve, switch valve, connecting pipeline, one-way valve, threeway one-way valve and resuscitation apparatus composition; The vent of vehicle bridge and wheel reductor is connected the connection interface of bilateral one-way valve respectively, and other 2 connection interfaces of said threeway one-way valve connect resuscitation apparatus and one-way valve respectively.
Wherein: an interface of threeway one-way valve connects the casing of vehicle bridge or wheel reductor, and other 2 connection interfaces connect resuscitation apparatus and one-way valve respectively, in the middle of the interface of connection resuscitation apparatus and one-way valve piston and return spring is set, and can not directly be communicated with.When the land operating mode of vehicle was worked, casing can be communicated with atmosphere through threeway one-way valve and resuscitation apparatus, guaranteed that body inside and outside air pressure is consistent, prevented that the casing internal air pressure is too high; When vehicle operating mode waterborne is worked; After air compressor passes through reduction valve and switch valve with high-pressure air, overcome the precompression of return spring in the threeway one-way valve, back down piston; Make and keep certain high pressure in the casing of vehicle bridge and wheel reductor of vehicle, anti-sealing enters into casing.
When vehicle went by land, switch valve cut out, and no high-pressure air enters into pipeline; When vehicle went on the water, switch valve was opened, and high-pressure air enters into pipeline.Only depend on the operation of switch valve can accomplish the switching of vehicle sealing state under water, the two kinds of driving cycles in land.
In threeway one-way valve and the switch valve one-way valve is set, guarantees that high-pressure air can only enter into vehicle bridge and wheel reductor casing from the air compressor end, air can not reverse flow.
Wherein: the air compressor that is connected with motor provides the high pressure origin.
Wherein: when vehicle went in water, gas pressure was traditionally arranged to be 1.5 times atmospheric pressure in the casing of said wheel reductor and vehicle bridge.
Owing to adopted technique scheme, compared with prior art, beneficial effect of the present invention comprises:
1) simple in structure
Only on former car basis, carried out a little change; Threeway one-way valve, resuscitation apparatus and one-way valve promptly are installed on the vent of wheel reductor and vehicle bridge; And all connecting pipelines are connected in parallel link to each other with reduction valve with switch valve, can realize the sealing of travelling state waterborne;
2) save the space, be beneficial to layout;
3) control conveniently
Switch land and aquatic work state and only need carry out a key operation, and control switch can be shared with switching mechanism waterborne switch valve;
4) good reliability
Can satisfy the requirement of the land and reliability of going waterborne of vehicle simultaneously;
5) universality is good, can be applied to multiple land and water vehicle.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further specified.
Fig. 1 is an amphibious vehicle vehicle bridge and wheel reductor seal arrangement schematic representation waterborne;
Fig. 2 is the gas circuit on state of the bilateral one-way valve of initial position (being communicated with 17 and 18);
Fig. 3 is the gas circuit on state of the bilateral one-way valve of surface condition (being communicated with 17 and 19);
Reference character:
The 1-motor; The 2-clutch; 3-gearbox (containing transfer case and transmission case waterborne); The 4-swimmer propulsion unit; The 5-propons; The 6-back axle; 7-wheel reductor assembly; The 8-wheel; The 9-air compressor; The 10-reduction valve; The 11-connecting pipeline; The 12-one-way valve; 13-bilateral one-way valve; The 14-resuscitation apparatus; The 15-transmission shaft; The 16-switch valve; 17-three-way interface (connecting the 7-wheel reductor); 18-three-way interface (connecting the 14-resuscitation apparatus); 19-three-way interface (connecting the 12-one-way valve); The 20-return spring; The 21-piston.
Embodiment
Below in conjunction with instance the present invention is carried out detailed explanation.
The present invention takes all factors into consideration the vehicle bridge of land and water vehicle and the structure and the operating characteristic of wheel reductor; Common vehicle vehicle bridge and wheel reductor are being changed under the minimum situation, inventing a kind of in vehicle bridge and wheel reductor, the ventilation and form the seal arrangement of positive pressure.
A kind of device that solves land and water vehicle vehicle bridge and wheel reductor sealing waterborne; Shown in Fig. 1 amphibious vehicle vehicle bridge and wheel reductor seal arrangement schematic representation waterborne, seal arrangement is made up of air compressor, reduction valve, switch valve, connecting pipeline, one-way valve, threeway one-way valve and resuscitation apparatus.Need not carry out big change,, can make original vehicle reach the effect of sealing waterborne, and sealing state on the road of original vehicle is had no effect as long as increase reduction valve, switch valve, one-way valve, threeway one-way valve and connecting pipeline parts to original vehicle.
The air compressor that is connected with motor provides high-pressure air.
When vehicle went by land, switch valve cut out, and no high-pressure air enters into pipeline; When vehicle went on the water, switch valve was opened, and high-pressure air enters into pipeline.Only depend on the operation of switch valve can accomplish the switching of vehicle sealing state under water, the two kinds of driving cycles in land.
An interface of threeway one-way valve connects the casing of vehicle bridge or wheel reductor, and other 2 connection interfaces connect resuscitation apparatus and one-way valve respectively, in the middle of the interface of connection resuscitation apparatus and one-way valve piston and return spring is set, and can not directly be communicated with.When the land operating mode of vehicle was worked, casing can be communicated with atmosphere through threeway one-way valve and resuscitation apparatus, guaranteed that body inside and outside air pressure is consistent, prevented that the casing internal air pressure is too high; When vehicle operating mode waterborne is worked; After air compressor passes through reduction valve and switch valve with high-pressure air, overcome the precompression of return spring in the threeway one-way valve, back down piston; Make and keep certain high pressure in the casing of vehicle bridge and wheel reductor of vehicle, anti-sealing enters into casing.
Connecting pipeline one end connects switch valve, and an other end connects the one-way valve of each sealing part.When the land state of vehicle goes, guarantee the ventilatory function of wheel reductor and vehicle bridge; When the vehicle surface condition is gone, guarantee that the high pressure air air can form positive pressure in the casing of wheel reductor and vehicle bridge, keep water can not enter into casing.
A kind of embodiment: the threeway one-way valve is installed on the vent of wheel reductor and vehicle bridge; And resuscitation apparatus is installed at the normal open end of threeway one-way valve; An other end of threeway one-way valve connects one-way valve, and the pipeline of all connection one-way valves is connected in parallel and links to each other with switch valve.Travelling state by land, the casing of vehicle bridge and wheel reductor is identical with atmosphere, plays the ventilation effect of wheel reductor and vehicle bridge; Travelling state on the water, the threeway one-way valve is communicated with the high-pressure air through decompression, makes in the casing of wheel reductor and vehicle bridge, to form high pressure, plays the effect that stops water entering casing.
In threeway one-way valve and the switch valve one-way valve is set, guarantees that high-pressure air can only enter into vehicle bridge and wheel reductor casing from the air compressor end, air can not reverse flow.
High-pressure air needed to carry out pressure through adjustable reduction valve before the casing that gets into bridge and wheel reductor regulates, and paddles to adapt to different vehicle, dives and cross and requirement of advancing waterborne.
In the land running process of vehicle, power from motor send, through clutch transmits behind gearbox, be delivered to forward and backward bridge respectively; Behind propons, rear axle speed-reducing, power is delivered to respectively left and rightly takes turns the limit transmission shaft again, and after wheel reductor deceleration rear driving wheel.At this moment, the lubricant oil Yin Gaowen in the casing of vehicle bridge and wheel reductor and produce high pressure, the box house air is connected atmosphere through threeway one-way valve and " resuscitation apparatus ", and the high pressure in vehicle bridge and the wheel reductor can effectively discharge.Driving cycle by land, the oil sealing in the casing only need be sealed lubricant oil in the casing and not leak and get final product.
In vehicle running process waterborne, power from motor send, through clutch transmits behind gearbox, drive transmission device waterborne, propelled vehicles goes in water.Form positive pressure this moment in the casing of bridge and wheel reductor, play the effect that anti-sealing enters into casing.
Invention has been described according to specific exemplary embodiment here.It will be conspicuous under not departing from the scope of the present invention, carrying out suitable replacement to one skilled in the art or revise.Exemplary embodiment only is illustrative, rather than to the restriction of scope of the present invention, scope of the present invention is by appended claim definition.
Claims (6)
1. an amphibious vehicle seal arrangement waterborne is characterized in that seal arrangement comprises air compressor (9), reduction valve (10), switch valve (16), connecting pipeline (11), one-way valve (12), threeway one-way valve (13) and resuscitation apparatus (14); The vent of vehicle bridge (5,6) and wheel reductor (7) is connected the connection interface (17) of bilateral one-way valve (13) respectively, and other 2 connection interfaces (18,19) of said threeway one-way valve (13) connect resuscitation apparatus (14) and one-way valve (12) respectively.
2. a kind of amphibious vehicle as claimed in claim 1 seal arrangement waterborne; The connection interface (18) and (19) that it is characterized in that threeway one-way valve (13) can not be communicated with; Its original state is that vehicle is by land during travelling state; Connection interface (17) and (18) are communicated with, and the casing of vehicle bridge of vehicle (5,6) and wheel reductor (7) is communicated with atmosphere through threeway one-way valve (13) and resuscitation apparatus (14), guarantee that body inside and outside air pressure is consistent; Threeway one-way valve (13) is at vehicle on the water during travelling state; Connection interface (17) and (19) are communicated with; After air compressor (9) passes through reduction valve (10) and switch valve (16) with high-pressure air; What overcome return spring (20) in the threeway one-way valve (13) answers pressure in advance, backs down piston (21), makes to keep certain high pressure in the casing of vehicle bridge (5,6) and wheel reductor (7) of vehicle; Connect through said connecting pipeline (11) between the different valve groups.
3. a kind of amphibious vehicle as claimed in claim 1 seal arrangement waterborne, when it is characterized in that vehicle goes by land, switch valve (16) cuts out, and no high-pressure air enters into pipeline; When vehicle went on the water, switch valve (16) was opened, and high-pressure air enters into pipeline.
4. a kind of amphibious vehicle as claimed in claim 1 seal arrangement waterborne; It is characterized in that in the middle of said threeway one-way valve (13) and the switch valve (16) one-way valve (12) being set; Guarantee that high-pressure air can only enter into vehicle bridge (5,6) and wheel reductor (7) casing from air compressor (9) end, air can not reverse flow.
5. a kind of amphibious vehicle as claimed in claim 1 seal arrangement waterborne is characterized in that said air compressor (9) is connected with motor (1), and under the engine start state, can continuing for this reason, device provides high-pressure air.
6. a kind of amphibious vehicle as claimed in claim 1 seal arrangement waterborne; When it is characterized in that vehicle goes in water; Gas pressure is by reduction valve (10) decision in the casing of said wheel reductor (7) and vehicle bridge (5,6), and the gas pressure in the said connecting pipeline (11) is 1.5 times a atmospheric pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110242045.6A CN102410375B (en) | 2011-08-23 | 2011-08-23 | Waterborne sealing device for amphibious vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110242045.6A CN102410375B (en) | 2011-08-23 | 2011-08-23 | Waterborne sealing device for amphibious vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102410375A true CN102410375A (en) | 2012-04-11 |
| CN102410375B CN102410375B (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110242045.6A Expired - Fee Related CN102410375B (en) | 2011-08-23 | 2011-08-23 | Waterborne sealing device for amphibious vehicle |
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| Country | Link |
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| CN (1) | CN102410375B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110843437A (en) * | 2018-08-20 | 2020-02-28 | 陕西重型汽车有限公司 | Vehicle underwater ventilation system and method |
| CN111114222A (en) * | 2020-01-20 | 2020-05-08 | 郑州宇通重工有限公司 | Transport vehicle |
| CN112240394A (en) * | 2020-11-03 | 2021-01-19 | 陆云鹏 | Sealing structure assembly of driving shaft assembly |
| CN114278720A (en) * | 2021-12-30 | 2022-04-05 | 重庆长安汽车股份有限公司 | Waterproof automobile speed reducer system |
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| CN2198462Y (en) * | 1994-08-25 | 1995-05-24 | 罗广宇 | Sealing device for amphibious automobile driving shaft |
| CN2265457Y (en) * | 1995-12-11 | 1997-10-22 | 罗广宇 | Water-proof sealing device for driving axle of amphibious vehicle |
| US6945610B1 (en) * | 1998-04-17 | 2005-09-20 | Toyota Jidosha Kabushiki Kaisha | Hydraulic braking system wherein electrically controllable assisting drive force is applied to master cylinder piston upon brake pedal operation |
| CN201539572U (en) * | 2009-08-13 | 2010-08-04 | 都江堰东翔环保科技有限公司 | Device for conducting contact seal through constant pressure of air sac |
| GB2473954A (en) * | 2009-09-24 | 2011-03-30 | Technology Investments Ltd | A sealing system for a hull of an amphibious vehicle |
-
2011
- 2011-08-23 CN CN201110242045.6A patent/CN102410375B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2198462Y (en) * | 1994-08-25 | 1995-05-24 | 罗广宇 | Sealing device for amphibious automobile driving shaft |
| CN2265457Y (en) * | 1995-12-11 | 1997-10-22 | 罗广宇 | Water-proof sealing device for driving axle of amphibious vehicle |
| US6945610B1 (en) * | 1998-04-17 | 2005-09-20 | Toyota Jidosha Kabushiki Kaisha | Hydraulic braking system wherein electrically controllable assisting drive force is applied to master cylinder piston upon brake pedal operation |
| CN201539572U (en) * | 2009-08-13 | 2010-08-04 | 都江堰东翔环保科技有限公司 | Device for conducting contact seal through constant pressure of air sac |
| GB2473954A (en) * | 2009-09-24 | 2011-03-30 | Technology Investments Ltd | A sealing system for a hull of an amphibious vehicle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110843437A (en) * | 2018-08-20 | 2020-02-28 | 陕西重型汽车有限公司 | Vehicle underwater ventilation system and method |
| CN111114222A (en) * | 2020-01-20 | 2020-05-08 | 郑州宇通重工有限公司 | Transport vehicle |
| CN111114222B (en) * | 2020-01-20 | 2022-08-12 | 郑州宇通重工有限公司 | Transport vehicle |
| CN112240394A (en) * | 2020-11-03 | 2021-01-19 | 陆云鹏 | Sealing structure assembly of driving shaft assembly |
| CN114278720A (en) * | 2021-12-30 | 2022-04-05 | 重庆长安汽车股份有限公司 | Waterproof automobile speed reducer system |
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| Publication number | Publication date |
|---|---|
| CN102410375B (en) | 2014-08-20 |
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Erkang Inventor after: Zhang Jinhui Inventor after: Song Dan Inventor after: Feng Fuyong Inventor after: Lin Runing Inventor after: Wang Zhaoshun Inventor after: Zhao Chunxia Inventor before: Li Erkang Inventor before: Zhang Jinhui Inventor before: Song Dan Inventor before: Feng Fuyong Inventor before: Lin Runing |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI ERKANG ZHANG JINHUI SONG DAN FENG FUYONG LIN RUNING TO: LI ERKANG ZHANG JINHUI SONG DAN FENG FUYONG LIN RUNING WANG ZHAOSHUN ZHAO CHUNXIA |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20170823 |